Refers to the action of pinching or the state of being pinched.
El doctor explicó que el pinzamiento del nervio podría causar un dolor intenso en la parte inferior de la espalda.
The doctor explained that the pinching of the nerve could cause intense pain in the lower back.
El pinzamiento del nervio causó dolor intenso en su brazo derecho.
The pinching of the nerve caused intense pain in his right arm.